NL100 - AK in marginal spots; am i weak?

[Kinbor]

the first one is against a very loose-passive fish; this one is questionable but he did make a big raise and this is never AK against this players, it's always JJ (or even QQ+). i didn't call because i thought i can get him in a better spot.

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($127.20)
CO ($28.50)
Button ($106.05)
SB ($241.90)
BB ($2.50)
Hero ($100)

Preflop: Hero is UTG with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Hero raises to $3.5</font>, MP calls $3.50, CO calls $3.50, <font color="#666666">1 fold</font>, <font color="#CC3333">SB raises to $16</font>, BB calls $1.50 (All-In), Hero folds, MP folds, CO folds.

Flop: ($12.50) J[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Turn: ($12.50) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

River: ($12.50) 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: $12.50

the second one is against two very tight regulars. i don't think i am not beating that much. i'd have to reraise pf, but concluded it wasnt such a great spot to do this. these guys were like 14/8 or smt like that.

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($83.50)
CO ($110.85)
Hero ($178.55)
SB ($170.20)
BB ($153.75)
UTG ($98.50)

Preflop: Hero is Button with K[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises to $4</font>, <font color="#CC3333">MP raises to $14</font>, <font color="#666666">4 folds</font>, UTG folds.

Final Pot: $9.50