When did you LO roll over? K rolled over once over a month ago (on a bed). Hasn't done it since.

Did your LO get REALLY frustrated during this phase? She will get upset sitting in any kind of seat and when she gets mad laying down, will use her feet to PUSH. But she gets really mad and cries out. DH said it's how she'll learn to roll over, but I never know if I should pick her up when she's crying or let her try to figure out the rolling over?

She's 15 weeks.