Im 38+2 weeks and me and my partner had sex last night. After that i was woken up multiple times through the night with backache and a few very mild cramps in my stomach. These disappeared around 5:30am and i got some sleep for 3 hours before I woke up and started getting some more cramping. Once i got up these pretty much disappeared until i went to a friends house. She said she could feel my bump harden every once in a while and this came with backache but it wasnt regular. Now after sex again im getting cramps and backache again but this time a bit stronger but im not noticing any tightening. Is this very early labour or just a result from having sex?