some advice ladies

hi dear ladies,

we have been ttc for 9 months now.we did the usual blood tests and everything came up fine,my hormones and DHs SA were all normal.

We did a regular ultrasound every two days last month and follicle was a good 21mm on cd 17 and confirmed ruptered later.But again Af turned up on time on Oct 3rd.

Should we again do the ultrasound this cycle too or request some other tests.i read up about blocked tubes but the test procedure scares me. any other suggestions?