After miscarriage period helllp?

Serii • Miscarried 2.03.15 Aamaal 16.08.16 Due 4.05.19 27y/o married to ❤️
I had a miscarriage on 2nd march. I was 6 weeks pregnant (dated from last period) and 1-2 weeks after conception (digital clear blue test) After bleeding the doctors said i was allowed to start trying again.. Naturally i did... Due to not starting a period which my app said i was ready for i did a pregnancy test and it came back negetive. I just wondered should i try another test or can i still get a period at a later date?